-Case should have a slot for inset & remove a micro SD card. It should be accessed without screwdriver; also it should not defeat the water proof. (One idea for the location of SD card could be behind the battery)

- PCB will be design based on the case shape; however the PCB size could be around (9cm2 or 1.4 inch2)

- PCB has 2 reset switches (miniature push button: [url removed, login to view]). one of them should be accessed easily the other one required inserting a pin into a hole for reset (this is actually a factory reset switch)